Steam-pump



(No Model.)

2 Sheets--SheeiJ 1. J. MASLIN.

STEAM PUMP.

No. 397,788.v Patented Peb. 12, 1889.

(No Inodel.) l 2v sheetssheet 2.

J. MAsLIN-Q STEAMPUMP.

Patented Feb. 12, 1889.

I "Il:

ATTORNEY.

N. PETERS. Phawlichuguprwr, washingiun. D` C.

UNTTEE STATES PATENT OFFICE.'

JOHN MASLIN, OF JERSEY CITY, NEWT JERSEY.

STEAM-=PU IVI P.

SPECIFICATION forming part of Letters Patent No. 397,738, dated February 12, 1889.

Application filed March 6, 1888.

Serial No. 266,371. (No model.)

T 0 @ZZ whom zit may concern/.f

Be it known that l, JOHN MAsLiN, a citizen of the United States, residing at Jersey City, in the county of lludson and State of New Jersey, have invented certainnew and useful Improvements in Steam-Pumps, of which the following is a specification, .reference being had therein to the accompanying drawings.

This improvement relates to that class of steam-pumps known as pulsometers lts object is to change the construction of the same, whereby it will. not only be made much cheaper, but it will be found more durable and convenient in use; and to these ends the invention consists in the peculiar construction, arrangement, and combination of parts hereinafter more fully described, and then definitely set forth in the appended claims.

In the' accompanying drawings, Figure l is a vertical transverse central section of a pump constructed according to my improvement, with part of the back wall broken away to show the discharge-valves in the rear. Fig. 2 is a rear view with the hand-hole cover removed and with a ball-valve in lieu oi' the rubber disk-valve shown in Fig. l. Fig. 3 is a plan partly in section, and Fig. l is a front elevation oi' my pump.

A represents the shell. or body of the pump, having'a hollow neck-piece, B, secured on the top by bolts and nuts, as shown by dotted lines in Fig. l and in full lines in Figs. 2, 3, and i. At the center oi this neck-piece are openings closed by caps C C', held on by bolts passingthrough slots in ears cast on both caps and the cent al part of the neckpiece, as shown in Figs. 2, 3, and 4. The lower cap, C, forms a rest for the bottom ot a double-acting valve, D, which finds a seat alternately on the opposite sides of the opening in the cap, as shown. The upper cap, C', has an opening adapted to receive a steampipe, E.

At the lower end of the shell is a valvechamber, a, divided from the main chamber of the pump A by a diaphragm, a', having perforations through it to receive the seats for ingress-valves, to be hereinafter described. Access is had to this chamber a by a handhole, F, normally stopped by a cover, G, which is held in place by two cross-bars, H, proliat valves, as shown at the left side.

vided with bolts l and nuts i. The 'face of the hand-hole cover is provided with projecting bosses having T-shaped slots, (shown in dotted lines in Fig. 3,) which receive the heads of the bolts I, so that shouldthe threads be accidentally stripped new bolts may be readily substituted for the damaged ones. From this chamber open three valves, which may be either ball-valves, as shown at the foot and right side of Fig. l, or they may be The seat J of the foot-valve K rests upon a ridge, j, cast upon the shell with a chill, so as to avoid the necessity of fitting, and above the seat rises a cage, L, which may either be cast therewith or rest uponl the same. The cage and seat are held in place by a bolt, M, and nut on. The square head of the bolt is held in a square hole formed in the bottom of a cross-bar, a, cast in the shell A, and the lower end-of the nut rests in a cavity in the top of the case, so that by turning the nut in one direction the cage and seat are firmly fastened in place, while by turning the nut in the opposite direction the cage and valveseat are freed, and with the valve may be readily removed or replaced.

' On the right-hand side of Fig. l one of the inlet-valves ll is shown. This is preferably a ball-valve, and is provided with a seat, O,

having projecting below it a curved bar, o,

which is preferably castwith it. Above the seat is a cage, P, for the ball-valve, attached to or forming part of a ring, p. Beneath the seat and detached from the same is a curved cross-bar, Q, resting on projections q, cast on the shell, and the cross-bar a, and having a bolt, R, that presses against the bottom of the curved bar o, thus holding the vseat and cage in place against the lower edge of the diaphragm a.

On the other side of the pump l have shown a different style of valve, N', to show how I would use a flat valve. In this case there is of course no cage required, and hence the' valve-seat 0 is held directly against the bottom of the diaphragm by a screw, R', passing through a cross-bar, Q ,resting on projections v 'roo like guard, S, which is held in place by a nut, s.

Above the dialihragm a are two passages, t, leading into the discharge-valve chamber T, in which is setthe discharge valve or valves, according to whether two disk-valves are used, as in Fig. l, or a single double-acting valve, as in Fig. 2. In Fig. l the passages t terminate in projectin rims against which are set the valve-seats lf, on which are secured the valves u by the guards Y V', which have screws formed on them to screw into the centers of the valve-seats. The center of the guard Y has a square recess to receive the square head of a bolt, IV, having on its opposite end the nut n', whose convex end Iitsinto a concavity in the center of the guard V', so that by turning said nut the seats may be tightly secured in place or loosened for rcmoval, should it be required. This valve-chainber is provided with a hand-hole closed by a cover, held in place by a cross-bar and screw similar to those shown in Figs. 3 and i, as closing the valve-chamlnn u. and fully described above.

It' a ball-valve is to be used, as shown in Fig. 2, the seats U l are held in place by two clamps instead ot the single elampingdevice above described. These clamps consist oll bolts X X, each having a square or hexagonal head, so as to be4 readily turned, and a convex top to fit into a coneavity in the righthand seat and threaded nuts or sleeves Y Y', each having asquare teat, y, that sets in a eorrespondingly-shaped hole in the opposite seat. The lower sleeve, T, has a projection, y', on its upper side, that tends to keep the ball in Contact with either one or the other ot' the seats.

There disk-valves are used I make them much thinner near the center, as shown at u', which makes them much 'more durable, as I have found by experience that valves madeot the saine thickness throughout usually give way at this point, which dit'liculty is overcome by reducing the thickness at the point indicated, as it makes the valve more flexible at the bending-point, while leaving the body of the valve of the usual thickness to withstand the pressure of the water above it.

I have shown ditlerent styles of valves, because it is a matter ot' indifference which style ot' a valve is used; but in practice each pump will have all its valves of the same style. By this construction all the joints can be made without iitting, being simply cast with chills and made tight at all points by the use of gaskets 2, and by the use of the valve-chamber u, I can have access to all three of the lower valves with only a single handhole. These improvements thus cheapen the cost ot' construction very much, independent of the advantage given by the facilityot examining all the lower valves through a single opening.

The operation of the pulsoineteris so well scares known that it seems superfluous to describe. the operation of the same.

What I claim as new isl. In a steam-puml'), and in combination with a removable valve-seat, t), set on the under side of the inlet-port, a cross-bar restn g on a stationary portion ol the shell, and a screw passing through said cross-bar and pressing the valve-seat to its place and away from the cross-bar, substantially as described.

2. In. a steam-Immp, and in combination with a removable valve-seat set on the under side oi' the inlet-port, a cage, a cross-bar resting on a stationary part ot' the shell, anda screw passin through said cross-bar and foreing the valve-scat to its place and away from the cross-bar, si'ibstantially as described.

3. In a steam-pump, the shell ol." which is divided into two parts by a diaphragm, ci', and in combination with removable valve-seats, as O O, the cross-bars resting on stationary parts of the shell and bolts foi-securing them in position on the under side of said diaphragm, substantially as described.

1i. The combination, in a pump,oll a diaphragm dividing said pump into two chambers and having openin l'or the inlet-valves, with an inlet into the lower chamber, and three valve-seats, one being on the inlet into said chamber and the others secured to the under side of the diaphragm, substantially as described.

5. The combimtton, in a pump, oll a diaphragm dividing said pump intor two chambers and having openings through the same for the inlet-valves, with. an. inlet into the lower chamber and three valve-seats, one being on the inlet into said chamber and the` others secured to the under side of the diaphragm, and a single hand-hole constructed to give access to all ot said valves, substantially as described.

(i. The combination, in a pump, of a valvechamber having opposite inlets with two-movable valve seats facing each other, and a fastening device, as the bolt X and nut or sleeve Y, pressing the said seats in opposite directions, substantially as described.

7. The combinatiol'i, in a pump, of a valvechamber having opposite inlets and a ballvalve therein, with two movable valve-seats facing each other, and fastening devices, as the bolts X. and sleeves Y Y, arranged above and below said valve, and t-he lower sleeve provided with a pro ,jectioin y', substantially as and for the purpose specified.

S. The combination, in a steam-pump, ot' a neck-casting, as B, having a double-seated valve-chamber provided with openings above and below the same, and a double-acting diskvalve vibratin within said chamber, with two caps closing said openings, and one forming a support for the bottom ol' the valve and the oth er bavi n an open ing for the connection ot' a steanrpipe, substantially described.

9. The combination, in a pump, ofa valve- IOO IIO

eem@

chamber, @valve-seat restingagainst the Walls In testimony whereof I affix my signature, ef an opening therein, a cage, L,1'esti11g en in presence of two Witnesses, this 5th day of the Valve-seat, and a bolt, M, pressing against March, 18%.

a stationary part of Jehe pump, and the mitm, JOHN MASLIN. 5 resting in a ifeeess in Jhe cage and een strueted XVitnesses:

to iinily held the valveseatin its p1aee,sub PETER RADEMANN,

stantially as described. 1 E. K. SEGUINE. 

